know

v. have knowledge of; be acquainted with; understand; distinguish; be aware of

n. state of knowing, knowledge

KNOW (91.1 FM) is the flagship radio station of Minnesota Public Radio's "news and information" network, primarily broadcasting a talk radio format to the Minneapolis-St. Paul market. The frequency had previously gone under the call sign KSJN, but the purchase of a commercial station at 99.5 MHz in 1991 allowed MPR to broadcast distinct talk radio and classical music services.
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Knowledge is defined (Oxford English Dictionary) variously as (i) expertise, and skills acquired by a person through experience or education; the theoretical or practical understanding of a subject, (ii) what is known in a particular field or in total; facts and information or (iii) awareness or familiarity gained by experience of a fact or situation. Philosophical debates in general start with Plato's formulation of knowledge as "justified true belief". There is however no single agreed definition of knowledge presently, nor any prospect of one, and there remain numerous competing theories.
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Verb
1. be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about; "I know that the President lied to the people"; "I want to know who is winning the game!"; "I know it's time"
(synonym) cognize, cognise
(antonym) ignore
(hyponym) recognize, recognise, realize, realise, agnize, agnise
(derivation) knower, apprehender
2. know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?"
(hyponym) know the score, be with it, be on the ball, know what's going on, know what's what
3. be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt; "I know that I left the key on the table"; "Galileo knew that the earth moves around the sun"
(hyponym) anticipate, previse, foreknow, foresee
(verb-group) cognize, cognise
4. be familiar or acquainted with a person or an object; "She doesn't know this composer"; "Do you know my sister?"; "We know this movie"; "I know him under a different name"; "This flower is known as a Peruvian Lily"
5. have firsthand knowledge of states, situations, emotions, or sensations; "I know the feeling!"; "have you ever known hunger?"; "I have lived a kind of hell when I was a drug addict"; "The holocaust survivors have lived a nightmare"; "I lived through two divorces"
(synonym) experience, live
(hypernym) experience, undergo, see, go through
(hyponym) taste
6. accept (someone) to be what is claimed or accept his power and authority; "The Crown Prince was acknowledged as the true heir to the throne"; "We do not recognize your gods"
(synonym) acknowledge, recognize, recognise
(hypernym) accept
7. have fixed in the mind; "I know Latin"; "This student knows her irregular verbs"; "Do you know the poem well enough to recite it?"
8. have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve"; "Were you ever intimate with this man?"
(synonym) roll in the hay, love, make out, make love, sleep with, get laid, have sex, do it, be intimate, have intercourse, have it away, have it off, screw, fuck, jazz, eff, hump, lie with, bed, have a go at it, bang, get it on, bonk
(hypernym) copulate, mate, pair, couple
(hyponym) take, have
(verb-group) neck, make out
9. know the nature or character of; "we all knew her as a big show-off"
(hypernym) recognize, recognise, realize, realise, agnize, agnise
10. be able to distinguish, recognize as being different; "The child knows right from wrong"
(hypernym) distinguish, separate, differentiate, secern, secernate, severalize, severalise, tell, tell apart
11. perceive as familiar; "I know this voice!"
(hypernym) remember, retrieve, recall, call back, call up, recollect, think

(v. i.)
To recognize; to distinguish; to discern the character of; as, to know a person's face or figure.
  

(v. i.)
To perceive or apprehend clearly and certainly; to understand; to have full information of; as, to know one's duty.
  

(v. i.)
To have sexual commerce with.
  

(v. i.)
To have knowledge; to have a clear and certain perception; to possess wisdom, instruction, or information; -- often with of.
  

(v. i.)
To be convinced of the truth of; to be fully assured of; as, to know things from information.
  

(v. i.)
To be assured; to feel confident.
  

(v. i.)
To be acquainted with; to be no stranger to; to be more or less familiar with the person, character, etc., of; to possess experience of; as, to know an author; to know the rules of an organization.
  

(n.)
Knee.
  

yi2 qiao4 bu4 tong1
A locked orifice.
To know nothing about something.

liao3 ru2 zhi3 zhang3
To understand at the tip of your finger.
To know something like the back of one's hand.

hu2 lun2 tun1 zao3
Swallow a date without chewing.
Said of someone who does not have a deeper understanding of his knowledge, but has just learned it vaguely. Reading without thinking. Learning without understanding. Compare with 半瓶子醋 (ban4 ping2 zi3 cu4), 知其然，不知其所以然 (zhi1 qi2 ran2, bu4 zhi1 qi2 suo3 yi3 ran2) and 华而不实 (hua2 er2 bu4 shi2).

jia1 yu4 hu4 xiao3
Becoming known to every household.
Said of something that is known to everybody.

ai4 zeng1 fen1 ming2
Knowing whom to love and whom to hate.
(No further explanation)

zhi1 zhi1 wei2 zhi1 zhi1, bu4 zhi1 wei2 bu4 zhi1, shi4 zhi1 ye3
Knowledge is to know what is knowledge and what is not.
(No further explanation)

zhi1 ren2 zhi1 mian4 bu4 zhi1 xin1
Knowing a man is only to know his face and not his heart.
(No further explanation)

zhi1 qi2 ran2, bu4 zhi1 qi2 suo3 yi3 ran2
Knowing how but not why.
Said of a person who has only limited or half-baked knowledge of something. Compare with 囫囵吞枣 (hu2 lun2 tun1 zao3).

lao3 ma3 shi2 tu2
An old horse knows the way.
Said about a person who knows how to deal with different situations. An old hand is a good guide.

zi4 zhi1 zhi1 ming2
The wisdom of knowing oneself.
Describing a person who has a correct appraisal of himself.